APA-viite (7. p.)

Seward, B. R. T. (1980). The production, handling and testing of forest tree seed in Zimbabwe: A review of methods and results. published with the authority of the Forestry Commission.

Chicago-viite (17. p.)

Seward, B. R. T. The Production, Handling and Testing of Forest Tree Seed in Zimbabwe: A Review of Methods and Results. [Harare]: published with the authority of the Forestry Commission, 1980.

MLA-viite (9. p.)

Seward, B. R. T. The Production, Handling and Testing of Forest Tree Seed in Zimbabwe: A Review of Methods and Results. published with the authority of the Forestry Commission, 1980.